/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.handler.admincommandhandlers;

import java.util.StringTokenizer;
import java.util.logging.Logger;

import net.sf.l2j.Config;
import net.sf.l2j.gameserver.handler.IAdminCommandHandler;
import net.sf.l2j.gameserver.model.L2Object;
import net.sf.l2j.gameserver.model.L2World;
import net.sf.l2j.gameserver.model.actor.L2Character;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;

/**
 * This class handles following admin commands:
 * - kill = kills target L2Character
 * - kill_monster = kills target non-player
 *
 * - kill <radius> = If radius is specified, then ALL players only in that radius will be killed.
 * - kill_monster <radius> = If radius is specified, then ALL non-players only in that radius will be killed.
 */
public class AdminKill implements IAdminCommandHandler
{
	private static Logger _log = Logger.getLogger(AdminKill.class.getName());
	private static final String[] ADMIN_COMMANDS = 
	{
		"admin_kill", 
		"admin_kill_monster"
	};

	public boolean useAdminCommand(String command, L2PcInstance activeChar)
	{
		if (command.startsWith("admin_kill"))
		{
			StringTokenizer st = new StringTokenizer(command, " ");
			st.nextToken(); // skip command

			if (st.hasMoreTokens())
			{
				String firstParam = st.nextToken();
				L2PcInstance plyr = L2World.getInstance().getPlayer(firstParam);
				if (plyr != null)
				{
					if (st.hasMoreTokens())
					{
						try
						{
							int radius  = Integer.parseInt(st.nextToken());
							for (L2Character knownChar : plyr.getKnownList().getKnownCharactersInRadius(radius))
							{
								if (knownChar == null || knownChar.equals(activeChar)) 
									continue;

								kill(activeChar, knownChar);
							}

							activeChar.sendMessage("Killed all characters within a " + radius + " unit radius.");
							return true;
						}
						catch (NumberFormatException e)
						{
							activeChar.sendMessage("Invalid radius.");
							return false;
						}
					} 
					else
						kill(activeChar, plyr);
				}
				else
				{
					try
					{
						int radius  = Integer.parseInt(firstParam);

						for (L2Character knownChar : activeChar.getKnownList().getKnownCharactersInRadius(radius))
						{
							if (knownChar == null || knownChar.equals(activeChar))
								continue;
							kill(activeChar, knownChar);
						}

						activeChar.sendMessage("Killed all characters within a " + radius + " unit radius.");
						return true;
					}
					catch (NumberFormatException e) 
					{
						activeChar.sendMessage("Usage: //kill <player_name | radius>");
						return false;
					}
				}
			}
			else
			{
				L2Object obj = activeChar.getTarget();
				if (obj == null || !(obj instanceof L2Character))
					activeChar.sendPacket(SystemMessageId.INCORRECT_TARGET);
				else
					kill(activeChar, (L2Character)obj);
			}
		}
		return true;
	}

	private void kill(L2PcInstance activeChar, L2Character target)
	{
		if (target instanceof L2PcInstance)
		{
			if(!((L2PcInstance)target).isGM())
				target.stopAllEffects(); // e.g. invincibility effect
			target.reduceCurrentHp(target.getMaxHp() + target.getMaxCp() + 1, activeChar, null);
		}
		else if (Config.CHAMPION_ENABLE && target.isChampion())
			target.reduceCurrentHp(target.getMaxHp()*Config.CHAMPION_HP + 1, activeChar, null);
		else
			target.reduceCurrentHp(target.getMaxHp() + 1, activeChar, null);
		
		if (Config.DEBUG)
			_log.fine("GM: "+activeChar.getName()+"("+activeChar.getObjectId()+")"+" killed character "+target.getObjectId());
	}

	public String[] getAdminCommandList()
	{
		return ADMIN_COMMANDS;
	}
}